hello. I am an idiot.I am nowhere near a computer genius and i recently purchased a vga nvidia geforce 6500 . unfortunately i didn't check how many Pci express channels it needed. it needed 16. and as soon as i took it out it was obvious that it wouldn't fit. so esentially my question is two fold. first, do i have to purchase a new motherboard in order for this graphics card to work or,is there a magical solution i am not aware of? secondly, i cannot identifyexactly what PCI express i have. how can i figure this out? thank you any help would be greatly appreiciated.